Invention Grant
- Patent Title: Method and system for waveguide delay based equalization with current and optical summing in optical communication
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Application No.: US16355357Application Date: 2019-03-15
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Publication No.: US10554310B2Publication Date: 2020-02-04
- Inventor: Simon Pang , Joseph Balardeta
- Applicant: Luxtera, Inc.
- Applicant Address: US CA Carlsbad
- Assignee: Luxtera, Inc.
- Current Assignee: Luxtera, Inc.
- Current Assignee Address: US CA Carlsbad
- Agency: McAndrews, Held & Malloy
- Main IPC: H04B10/66
- IPC: H04B10/66 ; H04B10/25 ; H04B10/67 ; H04B10/69 ; G02B6/42 ; G02F1/225 ; G02B6/34 ; G02F1/21

Abstract:
Methods and systems for waveguide delay based equalization with current and optical summing in optical communication are disclosed and may include an optoelectronic receiver including a directional coupler, two or more photodetectors, and one or more current mirrors. The optoelectronic receiver may be operable to: receive an input optical signal; split the input optical signal into first and second optical signals using the directional coupler; generate a first electrical from the first optical signal using a first photodetector; generate a second electrical signal from the second optical signal using a second photodetector; mirror the second electrical signal using the current mirror; and sum the first electrical signal with the amplified second electrical signal. The optoelectronic receiver may be operable to delay the first optical signal before generating the first electrical signal, using a waveguide delay.
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